BaseProperty::Pointer mitk::TransferFunctionPropertySerializer::Deserialize(TiXmlElement* element)
{
if (!element)
return NULL;
TransferFunction::Pointer tf = TransferFunction::New();
// deserialize scalar opacity function
TiXmlElement* scalarOpacityPointlist = element->FirstChildElement("ScalarOpacity");
if (scalarOpacityPointlist == NULL)
return NULL;
tf->ClearScalarOpacityPoints();
for( TiXmlElement* pointElement = scalarOpacityPointlist->FirstChildElement("point"); pointElement != NULL; pointElement = pointElement->NextSiblingElement("point"))
{
double x;
double y;
if (pointElement->QueryDoubleAttribute("x", &x) == TIXML_WRONG_TYPE)
return NULL; // TODO: can we do a better error handling?
if (pointElement->QueryDoubleAttribute("y", &y) == TIXML_WRONG_TYPE)
return NULL; // TODO: can we do a better error handling?
tf->AddScalarOpacityPoint(x, y);
}
TiXmlElement* gradientOpacityPointlist = element->FirstChildElement("GradientOpacity");
if (gradientOpacityPointlist == NULL)
return NULL;
tf->ClearGradientOpacityPoints();
for( TiXmlElement* pointElement = gradientOpacityPointlist->FirstChildElement("point"); pointElement != NULL; pointElement = pointElement->NextSiblingElement("point"))
{
double x;
double y;
if (pointElement->QueryDoubleAttribute("x", &x) == TIXML_WRONG_TYPE)
return NULL; // TODO: can we do a better error handling?
if (pointElement->QueryDoubleAttribute("y", &y) == TIXML_WRONG_TYPE)
return NULL; // TODO: can we do a better error handling?
tf->AddGradientOpacityPoint(x, y);
}
TiXmlElement* rgbPointlist = element->FirstChildElement("Color");
if (rgbPointlist == NULL)
return NULL;
vtkColorTransferFunction* ctf = tf->GetColorTransferFunction();
if (ctf == NULL)
return NULL;
ctf->RemoveAllPoints();
for( TiXmlElement* pointElement = rgbPointlist->FirstChildElement("point"); pointElement != NULL; pointElement = pointElement->NextSiblingElement("point"))
{
double x;
double r,g,b, midpoint, sharpness;
if (pointElement->QueryDoubleAttribute("x", &x) == TIXML_WRONG_TYPE)
return NULL; // TODO: can we do a better error handling?
if (pointElement->QueryDoubleAttribute("r", &r) == TIXML_WRONG_TYPE)
return NULL; // TODO: can we do a better error handling?
if (pointElement->QueryDoubleAttribute("g", &g) == TIXML_WRONG_TYPE)
return NULL; // TODO: can we do a better error handling?
if (pointElement->QueryDoubleAttribute("b", &b) == TIXML_WRONG_TYPE)
return NULL; // TODO: can we do a better error handling?
if (pointElement->QueryDoubleAttribute("midpoint", &midpoint) == TIXML_WRONG_TYPE)
return NULL; // TODO: can we do a better error handling?
if (pointElement->QueryDoubleAttribute("sharpness", &sharpness) == TIXML_WRONG_TYPE)
return NULL; // TODO: can we do a better error handling?
ctf->AddRGBPoint(x, r, g, b, midpoint, sharpness);
}
return TransferFunctionProperty::New(tf).GetPointer();
}
BaseProperty::Pointer mitk::TransferFunctionPropertySerializer::Deserialize(TiXmlElement* element)
{
if (!element)
return nullptr;
mitk::LocaleSwitch localeSwitch("C");
TransferFunction::Pointer tf = TransferFunction::New();
// deserialize scalar opacity function
TiXmlElement* scalarOpacityPointlist = element->FirstChildElement("ScalarOpacity");
if (scalarOpacityPointlist == nullptr)
{
return nullptr;
}
tf->ClearScalarOpacityPoints();
try
{
for( TiXmlElement* pointElement = scalarOpacityPointlist->FirstChildElement("point");
pointElement != nullptr;
pointElement = pointElement->NextSiblingElement("point"))
{
std::string x;
std::string y;
if (pointElement->QueryStringAttribute("x", &x) != TIXML_SUCCESS) return nullptr;
if (pointElement->QueryStringAttribute("y", &y) != TIXML_SUCCESS) return nullptr;
tf->AddScalarOpacityPoint(boost::lexical_cast<double>(x), boost::lexical_cast<double>(y));
}
TiXmlElement* gradientOpacityPointlist = element->FirstChildElement("GradientOpacity");
if (gradientOpacityPointlist == nullptr)
{
return nullptr;
}
tf->ClearGradientOpacityPoints();
for( TiXmlElement* pointElement = gradientOpacityPointlist->FirstChildElement("point");
pointElement != nullptr;
pointElement = pointElement->NextSiblingElement("point"))
{
std::string x;
std::string y;
if (pointElement->QueryStringAttribute("x", &x) != TIXML_SUCCESS) return nullptr;
if (pointElement->QueryStringAttribute("y", &y) != TIXML_SUCCESS) return nullptr;
tf->AddGradientOpacityPoint(boost::lexical_cast<double>(x), boost::lexical_cast<double>(y));
}
TiXmlElement* rgbPointlist = element->FirstChildElement("Color");
if (rgbPointlist == nullptr)
{
return nullptr;
}
vtkColorTransferFunction* ctf = tf->GetColorTransferFunction();
if (ctf == nullptr)
{
return nullptr;
}
ctf->RemoveAllPoints();
for( TiXmlElement* pointElement = rgbPointlist->FirstChildElement("point");
pointElement != nullptr;
pointElement = pointElement->NextSiblingElement("point"))
{
std::string x;
std::string r,g,b, midpoint, sharpness;
if (pointElement->QueryStringAttribute("x", &x) != TIXML_SUCCESS) return nullptr;
if (pointElement->QueryStringAttribute("r", &r) != TIXML_SUCCESS) return nullptr;
if (pointElement->QueryStringAttribute("g", &g) != TIXML_SUCCESS) return nullptr;
if (pointElement->QueryStringAttribute("b", &b) != TIXML_SUCCESS) return nullptr;
if (pointElement->QueryStringAttribute("midpoint", &midpoint) != TIXML_SUCCESS) return nullptr;
if (pointElement->QueryStringAttribute("sharpness", &sharpness) != TIXML_SUCCESS) return nullptr;
ctf->AddRGBPoint(boost::lexical_cast<double>(x),
boost::lexical_cast<double>(r), boost::lexical_cast<double>(g), boost::lexical_cast<double>(b),
boost::lexical_cast<double>(midpoint),
boost::lexical_cast<double>(sharpness));
}
}
catch ( boost::bad_lexical_cast& e )
{
MITK_ERROR << "Could not parse string as number: " << e.what();
return nullptr;
}
return TransferFunctionProperty::New(tf).GetPointer();
}